Tile fob soil



Sept. 6, 1932.

-w. SALISBURY TILE FOR SOIL STERILIZAT'ION Filed July 17. 1930 Patented Sept. 6, 1 932 WILLIAM snmsiaunnoi -i onro.

' TILE FOR SOIL Application filed July 17,

This invention relates to tile for soil sterilization.

This invention has utility when incorporated in systems for transmitting fluids for c distribution through soil and in the elements forming the system.

Referring to the drawing Fig. 1 is a perspective view of an installation, parts being broken away; 1

Fig.2 is a side elevation of a group of the elements of the invention herein, forming a sub-surface transmission line;

Fig. 3 is a view on the line III-III, Fig. 2;

Fig. 4 is a perspective View of a modified 15 type of transmission element; and

Fig. is an end elevation of a connecting element between a header and a distribution line.

Steam line or riser l is connected to header 20 2 disposed in soil 3 to have nipples 4 extend therefrom. Conical shaped plastic elements or tile 5 have their reduced ends circular and provided withopenings 6 therethrough for slip fit connection with the nipples 4.

The remote or large end thereof has cross sectional form comprising straight sides 7, 8, 9, forming a polygonal or semi-hexagonal portion. Circular side 10 thereof terminaes in fiat side extensions 11 which have connecting sides 12 therefrom to the polygonal portion.

This combination circular-polygonal shaped end is provided with chamfer 13 for receiving beveled end 14 of tile element 15 having the cross sectional form of the large end of the conical element 5. This peculiarly shaped tile has many advantages for subsurface fluid transmission.

The elements 15 are laid in parallel rows extending from the header 2 any desired length, the last tile of each line being capped by saucer-shaped cover 16 of the same material as the tile.

The tile are preferably laid so that the side 8 forms a base therefor, the extensions 11 then form overhangs along the sides thereof. Openings 17 extend radially through the sides 7 9, just under the overhangs ad acent the connecting faces 12.

Steam under pressure may be turned into ee-mm 1930': Serial no; "468,612."

the lines formed by these elements; and such will-bedeliwered in jetsdownwardly-from the tile into the soil;i All of? the steam will be so delivered, the interfittingends:and closed; line-termini preventing other escape. This I subsurface delivery in: downwardly directs edl j et'sinsuresa proper depth sterilization. while preventing;- blow outs 'orpuddles: It has been found that steam under 50 pound' pressure in the header will sterilize an area:v Q

approxilnatelyMO hy-5O feet in about Shours, killing all the undesirable bacteria without unnecessary flooding. v

The overhangs prevent-soil working into the openings 17 and also provide pockets 18 therebeneath which aid in initial distribution of the steam from the openings.

The semi-polygonal portion in its interfitting relation prevents rotation of the elements relative to each other maintaining in proper alignment of the openings 17.

In some instances circular tile 19 may be used and in order to maintain the openings properly aligned groove 20 is placedalong the side thereof to facilitate laying, the work H.

man placing the tile so that the groove is upward and continuous. To insure that alignment is maintained keys 21 may be dropped into the grooves over the joints.

The opening 22 through the tile. is prefa0 erably circular and while the elements are designed primarily for sterilization, the transmission lines formed thereby may be used for irrigation or fertilizing.

What is claimed and it is desired to secure 8' by United States Letters Patent is 1. Atile element having a cross sectional form comprising three fiat sides forming a semi-hexagonal portion, a circular side ter-' minating in parallel fiat faced extensions, and I0. flat sides connecting the semi-hexagonal portion termini and the extensions, said semihexagonal portions having downwardly directed openings therethrough adjacent the connecting sides.

2. A tile element whose cross sectional form comprises a polygonal portion and a circular portion, the circular portion terminating in parallel tangential extensions forming overhangs for the polygonal portion,

said polygonal portion being provided with downwardly directed openings therethrough adjacent the overhangs.

3. A tile element whose cross sectional form comprises a semi-hexagonal portion and a circular portion, the circular portion terminating in parallel tangential extensions forming overhangs for the semi-hexagonal portion, said tile having a series of downwardly extending openings through the semihexagonal portion adjacent the overhangwhich openings each have their termini entirely in opposite sides of a horizontal plane.

4. A tile having a cross, sectional form comprising a lower polygonal portion and an uppercircular portion forming an overhang for the polygonal portion and a downwardly extending opening through the polygonal a portion adjacent the overhang.

5. A tlle having a cross sectional form comprising a lower polygonal portion and an up;

per circular portion forming an overhang for the polygonal portion and a downwardly extending opening through the polygonal portion adjacent the overhang, the inner termini of said opening belng above said overhang. v

In witness whereof I aflix my signature.

WILLIAM SALISBURY. 

